2 papers
hep-ph2025
Five-body systems with Bethe-Salpeter equations
Gernot Eichmann, M. T. Peña, Raul D. Torres
We extend the Bethe-Salpeter formalism to systems made of five valence particles. Restricting ourselves to two-body interactions, we derive the subtraction terms necessary to preve…
hep-ph2025
Five-point functions and the permutation group S5
Gernot Eichmann, Raul D. Torres
Five-point functions and five-body wave functions play an important role in many areas of nuclear and particle physics, e.g., in 2 -> 3 scattering processes, in the five-gluon vert…